Add fast and furious speed to any Quadrilla building set with spiraling funnels, rails, accelerators, a high-velocity seesaw, and basic blocks, levelers and bases. Adding different pieces can make your marble run faster or slower. See how each piece works. WARNING: CHOKING HAZARD - Small parts.Not for children under 3 yrs. more ...

Features

Add fast and furious speed to any Quadrilla building set with spiraling funnels, rails, accelerators, a high-velocity seesaw, and basic blocks, levelers and bases.
Adding different pieces can make your marble run faster or slower. See how each piece works.